Light salt brine concentrated mother liquor salt recovery system

A light brine and salt recovery technology, which is applied in water pollutants, water/sewage treatment, heating water/sewage treatment, etc., can solve the problem of high cost of wastewater evaporation equipment, achieve moderate and uniform particle size, reduce consumption, and reduce The effect of corrosion

Pending Publication Date: 2021-02-05
SICHUAN YONGXIANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to develop a salt recovery system for dilute brine concentrated mother liquor that reduces the use cost, so as to solve the technical problem of high use cost of the waste water evaporation device

Method used

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  • Light salt brine concentrated mother liquor salt recovery system
  • Light salt brine concentrated mother liquor salt recovery system
  • Light salt brine concentrated mother liquor salt recovery system

Examples

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Embodiment Construction

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0023] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "below" the second feature may include direct contact between the first and second features, or include the first and second features. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "below" and "under" ...

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Abstract

The invention provides a light salt brine concentrated mother liquor salt recovery system, and relates to the field of light salt brine concentrated mother liquor salt recovery. A sodium sulfate removal unit comprises a crystallizer and a thickener which are communicated with each other through a pipeline, a light salt brine concentrated mother liquor inlet pipe is communicated with the crystallizer, the chlorate decomposition unit comprises a chlorate decomposition tank and an analysis tower which are communicated with each other through a pipeline, a liquid discharge pipe is arranged on theanalysis tower, and the cooling unit comprises at least one first circulating cooler. Circulating cooling water is introduced into the first circulating cooler, the first circulating cooler is communicated with the crystallizer through a circulating pipeline, the crystallizer is communicated with a light salt brine input pipe, the crystallizer is communicated with the chlorate decomposing tank through a pipeline, and the chlorate decomposing tank is communicated with a hydrochloric acid liquid inlet pipe and a steam pipe. The chlorate decomposition tank and the desorption tower are communicated with a chlorine discharge pipe. According to the invention, the use cost is reduced.

Description

technical field [0001] The invention relates to the field of salt recovery of dilute brine concentrated mother liquor, in particular to a system for recovering dilute brine concentrated mother liquor salt. Background technique [0002] The nitrate mother liquor produced by the light brine concentration device is about 2m³ / h, and the mother liquor contains 280g / l sodium chloride, 70 g / l sodium sulfate and 20-30 g / l sodium chlorate, which is used to control the sodium chlorate concentration of the light brine concentration device content, the mother liquor is sent to the waste water evaporator, and the waste salt produced by the waste water evaporator is transported to the solid waste treatment yard. [0003] At present, the solubility of sodium chlorate is very high (up to 800-1000g / l) in the process of evaporating salt production in the wastewater evaporator. Due to the continuous concentration of the mother liquor, sodium chlorate seriously corrodes the evaporation equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F101/10C02F101/12
CPCC02F9/00C02F1/52C02F1/38C02F1/00C02F1/66C02F2001/5218C02F2101/101C02F2101/12C02F1/02
Inventor 周宗华涂修林何文明杜亦军柳志勇
Owner SICHUAN YONGXIANG CO LTD
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